Know Your Environment. Protect Your Health.

Manganese

Harpeth Valley Utility District

Manganese is a naturally occurring element that is common in food and drinking water. Excessive manganese exposures may impair children's attention, memory and intellectual capacity. Click here to read more about manganese.

 

9

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.71 ppb41ND - 6.84 ppb
20190.660 ppb21ND - 1.32 ppb
2020N/A00N/A
202110.5 ppb1110.5 ppb
202210.5 ppb1110.5 ppb
2023ND10ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 100 ppb

The EWG Health Guideline of 100 ppb for manganese was defined by the state of Minnesota as a health risk limit, the concentration of a contaminant that can be consumed with little or no risk to health. This health guideline protects against harm to the brain and nervous system.

ppb = parts per billion

All test results

Date Result
2018-06-15ND
2018-09-11ND
2018-11-09ND
2018-12-146.84 ppb
2019-03-121.32 ppb
2019-11-12ND
2021-11-0810.5 ppb
2022-11-0710.5 ppb
2023-11-16ND